Both G-21 and G-22 are grammatical amendments. For G-21, the policy of the clause is to have all subsections apply in the event that the former Bill C-38, the Jobs, Growth and Long-term Prosperity Act, receives royal assent. This has to do with clarifying that.
This clause indicates “Subsections (2) to (7) apply”, yet there's no subsection (7). It should be listed as (6) rather than (7), in both languages.
(Amendment agreed to [See Minutes of Proceedings])